The Approach Shows Up as “LNAV” Only, With No Advisory Vertical (“+V”)

The most common cause of this is that the unit has detected either an invalid runway elevation or, the runway elevation is above the altitude at the MAP.  In addition, if you have a GTN™ touchscreen avionics software version 6.30 or higher, the GTN will be better able to support "+V" operations.  If you have a lack of +V, the first thing to check should be whether your system software is 6.30 or later.

Refer to the pilot's guide for your specific device for more information on LNAV and LNAV +V approaches.

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